Steptoe, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Steptoe, a community in Whitman County, Washington.
Overnight
43°F
Haze
Haze and patchy smoke. Mostly clear, with a low around 43. Northeast wind around 3 mph.
7-day forecast for Steptoe
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 43°F | Haze | 3 mph NE | 0% |
| Tuesday | 84°F | Haze | 5 mph NE | 0% |
| Tuesday Night | 46°F | Patchy Smoke then Haze | 3 mph NE | 0% |
| Wednesday | 90°F | Patchy Smoke then Sunny | 3 mph S | 0% |
| Wednesday Night | 49°F | Patchy Smoke then Clear | 3 mph NE | 0% |
| Thursday | 95°F | Sunny | 5 mph S | 0% |
| Thursday Night | 53°F | Mostly Clear | 5 mph S | 0% |
| Friday | 93°F | Sunny | 5 to 12 mph SW | 0% |
| Friday Night | 54°F | Mostly Clear | 3 to 10 mph SW | 0% |
| Saturday | 90°F | Sunny | 6 to 10 mph SW | 0% |
| Saturday Night | 52°F | Mostly Clear | 3 to 9 mph SW | 0% |
| Sunday | 85°F | Sunny | 6 to 9 mph SW | 0% |
| Sunday Night | 49°F | Mostly Clear | 2 to 7 mph SW | 0% |
| Monday | 84°F | Sunny | 7 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Steptoe (47.007, -117.350). Updated through the day.
Growing snapshot for Steptoe
Last spring frost
Apr 29
First fall frost
Oct 4
Growing season
161 days
Hardiness zone
6b
More local growing data for Steptoe: nearby ZIP 99174 weather · frost dates · planting calendar · Washington frost dates
Nearby towns & communities
Albion
Clarkston
Clarkston Heights-Vineland
Colfax
Colton
Endicott
Farmington
Garfield
LaCrosse
Lamont
Malden
Oakesdale
Palouse
Pullman
Rosalia
St. John
Tekoa
Uniontown
West Clarkston-Highland
Climate data from the nearest NOAA station, St John, Wa (12.4 mi from Steptoe). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.